| **Product and Geographic Information (Net Sales By Geographic Location) (Details) - USD ($) $ in Millions** | 3 Months Ended | 12 Months Ended |
|-------------------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                     |           |            |   |   |   |   |   |   |   |   |   |
| Net sales                                                                                                   | $ 1,447        | $ 1,339         | $ 1,410 | $ 1,345 | $ 1,439 | $ 1,372 | $ 1,448 | $ 1,363 | $ 5,541 | $ 5,622 | $ 5,501 |
| United States [Member]                                                                                      |           |            |   |   |   |   |   |   |   |   |   |
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                     |           |            |   |   |   |   |   |   |   |   |   |
| Net sales                                                                                                   |           |            |   |   |   |   |   |   | 2,838 | 2,657 | 2,596 |
| Japan [Member]                                                                                              |           |            |   |   |   |   |   |   |   |   |   |
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                     |           |            |   |   |   |   |   |   |   |   |   |
| Net sales                                                                                                   |           |            |   |   |   |   |   |   | 456 | 526 | 567 |
| Other foreign countries [Member]                                                                            |           |            |   |   |   |   |   |   |   |   |   |
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                     |           |            |   |   |   |   |   |   |   |   |   |
| Net sales                                                                                                   |           |            |   |   |   |   |   |   | $ 2,247 | $ 2,439 | $ 2,338 |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
+ Details**Name:**us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688
+ Details**Name:**us-gaap_SalesRevenueNet**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                    |
|--------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_StatementGeographicalAxis=country_US**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                    |
|--------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_StatementGeographicalAxis=country_JP**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                  |
|----------------------------------------------------------------------------------------------------------------------------------------------------|
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